Routing head



Patented Aug. lei, l923.

ALFRED Mancuso, or BnooKLYn, New Yoan.

i Application `filed August 27, 1921. Serial No. 496,013.

To all to 7mm t may concern.'

Be it lmown that l, ALFRED MARGEAU, a citizen of the United States, and a resident ot the city of New York,V borough ot Brooklyn, in the county of Kings and State ot New York, have invented a new and lmproved `Routing Head7 of' which the following is a full7 clear7 and exact description.

The object ol the invention is to provide a new and improved routing head Jfor photoengraving work and arranged to insure tree running of the tool-carrying spindle and reduce wear to a minimum thus prolonging the life of the running parts.

Another object is to allow convenient and quick assembling and disassembling ol' the ruiming parts. p p

With these and other objects in view, the invention consists ot' certain novel teatureslot construction as hereinafter shown and described and then specifically pointed out in the claims.

A. practical embodiment. of the invention is represented in the accompanying` drawings in which `similar characters ot reference indicate corresponding parts in all the views. Y 4 Figure 1 is aside elevation of the improved routing head mounted on the usual movable arm;

Figure 2 is an enlarged rear elevation of the routing head with parte shown in section the sleeves; and

Figure 4 is a similar view of one of the ball race members. y

The frame ot the routing head is attached to the 'free end of the usual swing arm 11 and on the frame 10 the head 12 is mounted to slide up and down by the use ot a screw rod 13 screwing in the head and together whenever it is desired to clamp the l screw rod 13 in place alter the desired up or down adjusting movement has been given to the head 12. The upper end of the screw rod 13 is provided with a suitable handle 17 for conveniently turning the screw rod 413 after the same has been unclamped by the clamping screw 16.

On the head 12 are cast or secured upper Figure 3 is a perspective view of one of and lower spindle supports 20 and 21, of which the upper spindle support 20 is 'provided on the top with a screw cap 22 and a similar screw cap 23 screws in the lower end o the lower spindle support 21. lVithin the spindle supports 20 and 21 are arranged ball bearings 25 and 26 having fixed race members 27 and rotatable race members 28'with balls 29 interposed between the said race members. Through the rotatable ball race members 2S extends loosely a spindle 30 adapted to support at its lower end the usual routing tool. On the spindle 30 intermediate the spindle supports 20 and 21 a. driving pulley 31 is secured by screws 82 or` other fastening devices, and this pulley 31 is connected by a belt with other machinery for imparting a rotary motion to the spindle 30.

i In order to rotate the rotatable ball race members 28 with the spindle 30 the following arrangement is made: On the upper end of the spindle 30 is mounted loosely a top spindle sleeve 35 extending through the cap 22 and provided at its lower end with a lug 36 engaging a recess 37 formed in the top of the rotatable ball race member 2S of the upper ball bearing 25. The top of the sleeve 35 is engaged ing on the upper threaded end of the spindle 30 and hence when the latter is rotated a rotary motion is transmitted to the rotatable ball race member 2S by the nut 38 and the sleeve 35. The under side of the ball race member 28 oit the upper ball bearing 25 engages Vthe top of a spindlesleeve l0 eX- tending loosely through the upper spindle support 2O and resting on the top of spindle sleeve -ll extending through the pulley 31 and haring slots l2 for the passage of the attaching screw 32 previously mens tioned. The lower end of the spindle sleeve l1 rests on top of a lower spindle sleeve 115 heldloosely in the upper1V portion of the lower spindle support 21. This sleeve is interlocked at its lower end with the rotatable ball race member 28 ot the lower ball bearing 2G by the use ol' a lug 3G and a recess 37, the same as above de scribed in reference to the top sleeve 35 and the rotatable ball race member 28 of the upper ball bearing 25. The lower end ot the ball race member 28 oli the lower ball bearing 26 rests on an annular shoulder formed on the spindle 30, and the fixed vball race member 27 of the lower ball bearing 26- rests on the cap 23. lt will be noticed that by the use ot the interposed sleeves 40, 4l and e5, the rotary motion given to the ball race member 2S of the upper ball bearing 25 is transmitted to the ball race member 28 ot the lower ball bearing It will also be noticed that by the arrangement described the spindle supports 20 and 21 are not in the least affected as lar as Wear is concerned by the rotating spindle 30.' It Will further be noticed that on removing` the nut 3S and the cap 22 the sleeve andL the upper ball bearing can be readily removed for repairs or other purposes and the spindle 30 can readily be Withdrawn after loosening the screws 32 to'permit el readily removing` the lower cap 33, the lower ball bearing 2G andthe sleeve i5 for repairs or other purposes. After the spindle 30 has been removed the pulley 3l with' its sleeve 4l can be removed and likewise the sleeve 40. ln a like manner the several parts can be readily assembled and fastened together to insure a tree running oli the spindle and to reduce Wear ot the running parts to a minimum thus prolongingrvthe life of the routing head.

ln order to insure proper lubrication ot` the ball bearings 253 and 26 the following; arrangement is made: ln the under side oil the cap 22 is formed an oil Well G0 filled with a1 Wick 6l orvsimilar material,A and in the open bottom et the oil well is arranged a ringl 32 resting on the iizedl ball race member 27 of the upper ball bearing 25. The ring G2v extends in close proximityI to the rotatable bail raeemember 28 to alloiv oil from the oil well GO to pass through the balls 29 and into the space between the ball race members 2T and 2S to lubrieate the same. A filling hole 63 is 'formed in the cap 22 and leads to the oil Well G0', and this lillin` hole G3 is normally closed by a suitable closure 64s. A similar oil Well 65 iill'edwvith a Wickv (3G is formed in the upper portion ol the lower spindle support 2l and the open bottom oit this oil Well lis provided with a ring 67 similar to the ring 62 and or the sameV purpose. A filling hole a" is formed iu the spindle support 2i and leads to the top of the oil Well G5 andthis filling hole 68 is normally closed by a suitableclosul'e 69 the same as the closure (34E.4

1 L lessees It Vwill be noticed that iny both cases the lubricating oil lubricates-Ithe ball bearings 25 and 26 by gravity and as the oil Wells can contain an ample supply et oil it is evident that the ball'rbearings are'yvell supplied with oil-for a considerable length of time. Y

' Having thus described myV invention, Vl claimV as neu7 and desire'to secure by'Letters Patent: Y

l. ln a routing head, spacediupperand lower spindle supports, ball mounted in said supports and having lined and rotatable ball-race members, a spindle extending into the supportsand through the bearings, a plurality of sleeve elements :ter the spindle auxiliary to the inner race meinbers and also extending into the supports, said inner race members andV sleeve elements abutting endwise one againstv another and carrying at their ends, the support tor one of the ball bearings constituting astop for one end ot the stack ot sleeve elements and inner race members, and releasable means 'for cor pressing the stack against saidstropfto ma y tain all members of the stack positively Vinterloeked *and locked on'the spindle, the' means last mentioned comprising nut threaded on one end of thelspindle beyond said stack. y

2.111 'a routing'y head, spaced upper and lower spindle 'supports mounted Vin the saidV supports and having` fined and `rotatable ball race members, a

spindle extending through the ball bearings',A

a pulley attached; to the said spindle interbearingsv ball bearings' cci-acting projections and recesses ser spindle vsleeve on the upperend the 1 spindle and engagingv the rotatable 'ballV race member o1 the upper ball bearing, nue.

said upper sleeve, a spindle sleeve in the.

pulley andengaging,- the spindle,` an'intermediate spindle sleeve bet-Ween the loottomY of the upper ball bearing and the' said' pulley sleeve, and spindle-sleeve engaging Y the rotatable ball race member of the lower ball bearingl and interposedbetween' theV Vlatter' and the said pulley sleeve.

nLirRnn Martone 'i 90 mediate the said spindlev siuiports,Y a' t'op 

